Hi All I have a MacPro1,1 with the original nVidia 7300. An 8800gt (MB137z/a) was made available to me, but unfortunately does not work because this is the 64-bit EFI version. Is it possible to reflash this card to 32-bit EFI (same as the MB560Z/A?). Alternatively, I am open to trading the card itself for the 32 bit version if anyone would like to do this. Thanks.